698 Records of the Indian Museum. [Voi,. XXII, 



directed diverticula, coming off metamerically in somites xix- 

 xxiii. The crop presents a very thin wall and was found to be 

 filled with a dense coagulum. Opening from the crop irx somite 

 xix is a short tube leading directly into the stomach which is 

 provided with four pairs of lateral pouches, lying within somites 

 xix-xxii. In structural respects this differs from the crop, pos- 

 sessing its wall which is made up of closely apposed, columnar 

 epithelial cells, surrounded by two sets of muscular fibres, circular 

 and longitudinal. Posteriorly the stomach is continuous with the 

 intestine, which in its course is divided into two chambers b^' a 

 constriction and finally opens on the dorsal surface between rings 

 69 and 70. 



The vascular and coelomic systems, so far as my observation 

 goes, seem to be constructed on the same plan as in most of the 

 Glossosiphonids. 



There are some seventeen pairs of nephridia, the ducts of 

 v/hich lie in the lateral parts of the body, forming a convolution 

 in the central portion. The duct opens ventrally on the middle 

 ring of a somite, somewhat nearer the margin than the median 

 liue. 



The cephalic ganglionic mass lies for the most part in somite 

 viii, consisting, as usual, of the fused ganglia of the first six 

 somites. The arrangement of its ganglionis capsules is the same 

 as that found in Gl. heteroclita, though the most ventral and poste- 

 rior capsule of neuromere i in the present species exhibits no 

 horn-like process extending backwards laterally into contact with 

 the lateral capsules of neuromere iii. Between the cephalic and 

 acetabular ganglionic masses there exist \'entrally twenty-one dis- 

 tinct ganglia, which are metamerically arranged and joined by 

 paired connectives. The usual jjosition of the ganglion is in the 

 middle ring of each somite. Towards either end of the body, 

 however, there can be found a slight centripetal disiDlacement of 

 the gangila, as is seen in many leeches. 



The genital organs agree in the main with Gl. heteroclita, open- 

 ing by a common aperture which at a glance seems to lie in the 

 middle of the ring as has been stated by Blanchard. A closer 

 examination, however, has revealed that it is situated between 

 somites xi and xii. It maj^ be considered probable that Blanchard 

 was mistaken, as in the case of Gl. heteroclita , in determining the 

 position of the openiirg. 



The male elements consist of six pairs of follicular testes 

 situated intermetamerically on both sides of the median line in 

 somites xiii/xiv-xviii/xix. They are connected on each side by 

 short vasa efferentia with the vas deferens, which proceeds for- 

 wards, pursuing a tortuous course, and then dilates into a thick- 

 walled tube, the " prostate." Its entire course could not be 

 definitely made out. About the region of somite xi the prostate 

 on each side makes an abrupt turn downwards and inwards, uniting 

 into a short common duct, which soon opens to the exterior by 

 the common genital aperture from the front. 



